发电厂内2台独立机组厂用电互联的应用

为加强厂用电的可靠性,达到节能降耗的目的,设计将2台机组独立的6 kV厂用电源系统互联。系统按照实际负荷选取开关、 配置保险、加设控制回路、整定保护并进行核相;在使用新增联络开关时,需根据运行方式合理切换联跳压板。应用结果表明:改造后的厂用电系统,不但保障了厂用备用电源的可靠性,而且有效地节约了厂用外购电费用。

Application on interconnection the service power source for two alone power generation units in the power plant

In order to strengthen the reliability of service power and saving energy and reducing loss,interconnect the 6 kV service power source system of two alone power generation units. The systemaccording to the actual load selects switch, configurates insurance, designs control circuit, setsprotection and makes phase check, using of connective switches, switches the linkage switchaccording to operation mode reasonably. The result of application shows that the service power sourcesystem after reconstructed, not only ensures the reliability of standby service power source, but alsoeffectively saves outsourcing cost of service power.